My C500 taillight panel was painted with the old batch of organosol that I bought many years ago. The gallon container had never been opened, and the can had been stored in climate controlled conditions. The painter mixed the paint with a shaker prior to opening, and said it looked totally fresh when he opened the can... like it had been canned the day before. He immediately resealed the contents in four one quart cans, using one later to paint the taillight panel.

The lacquer based organosol was applied without a problem: